complete more pkgs

- bitwarden is configured to install the cask on macos and the appimage
  on linux
- dbeaver is configured using the flatpak installation
- added handling of flatpaks

vars/main.yml

@@ -14,6 +14,10 @@ brewtaps: []
 cargopkgs: []
 cargoversioned: []
 caskpkgs: []
+flatpkgs: []
+flatpkg_repo:
+  - name: flathub
+    url: https://dl.flathub.org/repo/flathub.flatpakrepo
 gopkgs: []
 npmpkgs: []
 packages: []
@@ -28,6 +32,7 @@ tappkgs: []
 # pkgconfig.<pkgname> as a dict
 pkgconfig:
   alacritty: {}
+  bitwarden: {}
   carapace: {}
   clangd: {}
   consul: {}